Graphs 8
3 marks · EasyThe graph of is transformed to .
Describe the transformation.
Write down the equation of the transformed graph if .
Give the new coordinates of the point (2, 8) on the transformed graph.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
(a) Reflection in the x-axis
(b) y = -x^3
(c) (2, -8)
Show mark scheme and worked solution
Marking points
B1a (a) · 1 mark · B1: Correctly identifies the transformation as reflection in the x-axis.
B1b (b) · 1 mark · B1: Writes the correct equation: y = -x^3.
B1c (c) · 1 mark · B1: Gives new point as (2, -8).
Worked solution
a) Multiplying by -1 reflects the graph in the x-axis. b) The new equation is y = -x^3. c) Original point (2, 8) becomes (2, -8) on the new graph.